106 results about "Carbon disulfide" patented technology

The invention discloses a rectification mechanism and a carbon disulfide production system containing the same. The rectification mechanism comprises an integrated rectification tower, and an inner cavity of a shell of the integrated rectification tower is sequentially divided into a function-integrated pre-separation and sulfur removal area, a main rectification and hydrogen sulfide removal area and a condensation reflux area from bottom to top in the vertical direction; the pre-separation and sulfur removal area comprises a settling tank arranged at the lower part of the shell, a gathering cover arranged above the inner wall of the settling tank, and a gas rising pipe I arranged above the gathering cover; the invention belongs to the technical field of chemical separation, and achieves the technical effects that multi-stage functions of pre-separation, main rectification, precise purification, final condensation and the like are innovatively integrated in a single tower, so that the fundamental simplification and compactness of the equipment structure are realized; in the traditional process, separate coarse removal, fine removal and finished product towers are replaced by unique expanded settling tanks in the towers, filler layers of integrated plate heat exchangers, tower tops with spiral condensation channels and side-draw systems.

The invention relates to a method for preparing lithium sulfide at low temperature by microwave molten salt assisted carbon disulfide-lithium salt reaction, and belongs to the technical field of key materials of lithium-sulfur batteries and solid-state batteries. The technical problems of high energy consumption, difficulty in inhibiting by-products, insufficient purity and crystal phase stability, difficulty in continuous amplification and the like in the existing lithium sulfide preparation process are solved. Comprising the following steps: step 1, performing crushing, screening and grading treatment on lithium source powder; step 2, placing the treated lithium source powder and molten salt in a closed reactor, and introducing CS2 in a gas or liquid form; 3, applying microwave radiation, and reacting at a gas-solid-liquid multiphase interface to generate lithium sulfide; and 4, cooling the material after the reaction to room temperature, separating and recovering the fused salt to obtain the lithium sulfide powder. The method is low in reaction temperature, low in energy consumption, high in reaction rate, high in product purity and suitable for continuous and industrial production.

The invention belongs to the technical field of mineral flotation, and particularly discloses a xanthate collecting agent and a preparation method and application thereof, and the xanthate collecting agent is obtained by taking ether alcohol, carbon disulfide and caustic alkali as raw materials to react; the xanthate collecting agent is selected from at least one of formulas I-VI. The xanthate collecting agent has the advantages of being free of peculiar smell, easy to degrade, high in yield, high in purity, efficient in mineral flotation and the like, the working environment of the xanthate collecting agent in the production and using process can be effectively improved, operation is easy and convenient, cost is low, and industrial production is easy to achieve.

The invention provides a fullerene pyrrolidine enantiomer mediated cholesteric liquid crystal with circular polarization luminescence property and nonlinear anti-saturated absorption property, and a preparation method and application thereof. The method comprises the following steps: dissolving C60, paraformaldehyde and (R / S)-(+ / -)-alpha-methylbenzylamine in an organic solvent, and carrying out heating reflux reaction to obtain fullerene pyrrolidine enantiomer molecules; dissolving in carbon disulfide to obtain an enantiomer solution; dissolving achiral dye molecules in a solvent to obtain a dye solution; and dropwise adding the enantiomer solution and the dye solution into thermotropic liquid crystal molecules, and drying to obtain the thermotropic liquid crystal. The method is simple, the obtained cholesteric liquid crystal system shows a characteristic fingerprint texture and has a periodic spiral structure, and the doping proportion of chiral molecules is easy to adjust; the composite system has good time stability and is not prone to phase separation; the liquid crystal platform shows good circular polarization luminescence performance and third-order nonlinear optical property, and is a cholesteric liquid crystal platform with an integrated function.

This invention belongs to the field of mineral flotation technology, and discloses a flotation collector for non-ferrous metal sulfide ores, its preparation method, and its application. The collector uses O,O-dialkyldithiophosphate as a starting material, and reacts sequentially with a halocarboxylic acid ester, hydrazine hydrate, potassium hydroxide, and carbon disulfide in anhydrous ethanol in a three-step reaction to obtain the target product, O,O-dialkyldithiophosphate hydrazide-N′-dithiocarbamate potassium. Its molecular structure simultaneously contains three active groups: a dithiophosphate group, an hydrazide group, and a dithiocarbamate group. This invention achieves efficient process connection and smooth transition by optimizing the material ratio, temperature, and time of each reaction step, and has advantages such as mild reaction conditions, simple operation, few side reactions, high yield, and stable product. The prepared collector exhibits excellent collecting performance and good selectivity for non-ferrous metal sulfide ores such as chalcopyrite, and is suitable for widespread application in sulfide ore flotation processes.

The invention discloses an optimized synthesis method of bis (pentamethylene) thiuram tetrasulfide, which comprises the following steps: adding sulfur and piperidine into a reaction system in batches by utilizing the solubility difference of sulfur in carbon disulfide and water, so that condensation reaction is carried out step by step, the conversion rate of sulfur is increased, and the reaction system is controlled to keep constant temperature; and slowly dropwise adding hydrogen peroxide to carry out oxidation reaction to obtain the rubber vulcanization accelerator DPTT. According to the method, the condensation reaction process is split, so that the residual quantity of the intermediate product piperidine dithiocarbamate (PDC) and free sulfur is greatly reduced, and the content of bis (pentamethylene) thiuram tetrasulfide and the content of bis (pentamethylene) thiuram hexasulfide (DPTH) in the product are relatively stable. The total yield is stabilized at 96% or above, the initial melting point is stabilized at 112-114 DEG C, the PDC in the mother liquor is less than or equal to 6%, the free sulfur is less than or equal to 3%, the COD in the mother liquor is less than or equal to 3000 mg / L, the production operation is convenient and efficient, and the method has important industrial application value.

The invention belongs to the technical field of chemical separation, and discloses a two-stage low-temperature condensation coupling compression separation high-purity hydrogen sulfide purification process and system. The system consists of a two-stage low-temperature condensation unit, a hydrogen sulfide compression unit and a hydrogen sulfide collection unit, the two-stage low-temperature condensation unit comprises a hydrogen sulfide liquid separation tank, a hydrogen sulfide low-temperature cooler, a hydrogen sulfide low-temperature liquid separation tank, a hydrogen sulfide heat exchanger and a hydrogen sulfide saline water liquid separation tank. Hydrogen sulfide raw material gas containing carbon disulfide impurities is sequentially introduced into a two-stage low-temperature condensation unit, carbon disulfide is liquefied and separated out preferentially, low-temperature water is adopted in the first stage, and materials subjected to cryogenic compression throttling are adopted in the second stage for heat exchange; pressurizing and compressing the primarily purified hydrogen sulfide gas-phase component, and then condensing and separating to remove trace carbon disulfide and recover cold energy, thereby finally obtaining the high-purity hydrogen sulfide with the purity of more than or equal to 99.95%. According to the invention, a low-temperature two-stage low-temperature condensation-pressurized compression condensation coupling separation technology is adopted, and deep removal of carbon disulfide is realized under the condition that a third component is not introduced.

The present disclosure relates to a method for manufacturing a regenerated material capable of effectively utilizing carbon contained in a battery material. The method for producing a recycled material includes the following steps (a) and (b). Step (a): preparing a battery material. Step (b): carbon disulfide is generated by reacting carbon and sulfur contained in the battery material.

The utility model discloses a carbon disulfide recovery device utilizing liquid nitrogen cryogenic condensation. The carbon disulfide recovery device comprises a tail gas conveying piece, a pre-cooling condenser, a gas-liquid separator, a low-temperature condenser, a liquid nitrogen condenser, a liquid nitrogen storage tank and a carbon disulfide collection tank. The carbon disulfide recovery device is provided with the pre-cooling condenser and the gas-liquid separator, pre-condensation is carried out through the pre-cooling condenser, the moisture content in carbon disulfide tail gas can be effectively reduced, and the problems of frosting, corrosion and equipment blockage in the follow-up process are solved. The gas-liquid separator further performs water removal treatment on the carbon disulfide tail gas to prevent a large amount of water vapor from entering the low-temperature condenser and the liquid nitrogen condenser and prevent the water vapor from being condensed into frost in an internal pipeline, so that the problem of ice blockage of the low-temperature condenser and the liquid nitrogen condenser is prevented, and the shutdown cleaning requirement caused by frosting and scale deposition can be reduced; and labor and maintenance costs are saved.

The present application pertains to a method of making carbon disulfide. The method comprises reacting methane and sulfur under conditions sufficient to produce carbon disulfide, hydrogen disulfide, and heat. At least a portion of the produced hydrogen disulfide is reacted with methane under conditions sufficient to produce a mixture comprising carbon disulfide and hydrogen. Advantageously, at least a portion of the heat from reacting methane and sulfur is employed in the reacting of at least a portion of the produced hydrogen disulfide with methane.

The purpose of the present invention is to provide spherical microparticles of cellulose ether having a low degree of substitution, which can contribute to improving the feeling of use of a cosmetic composition to be used regardless of whether or not carbon disulfide is used. The purpose is achieved by spherical cellulose ether microparticles having a low degree of substitution in which the volume-based average particle diameter (D50) of primary particles measured by dry laser diffraction is 1-30 [mu] m, the true sphericity is 0.75-1.0, and the surface smoothness is 75-100%.

This invention discloses a low-resistance, easily puncturable disposable isolation plug and its preparation process, belonging to the field of isolation plug processing technology. It addresses the technical problem that the puncture and sealing performance of existing isolation plugs needs further improvement. Specifically, it comprises the following components by weight: 70-80 parts isoprene rubber, 10-15 parts modified vulcanization accelerator, 3-5 parts modified self-lubricating capsules, 2-3 parts sulfur, and 1-3 parts excipients. This invention obtains a modified vulcanization accelerator by reacting pretreated chitosan with carbon disulfide, prepares a polyurethane prepolymer using an antibacterial diol, further emulsifies it to form self-lubricating microcapsules, and modifies them with dopamine / graphene oxide. The isoprene rubber is then mixed with the modified capsules and excipients, followed by the addition of the modified vulcanization accelerator and sulfur for open mixing, curing, and vulcanization molding, resulting in a disposable isolation plug with low puncture force, low shedding, and good self-sealing properties.

The invention belongs to the field of pesticides, and discloses a compound with a structure as shown in a formula I. A preparation method of the compound comprises the following steps: reacting anthranilic acid with formamide, and then reacting with 1, 4-dibromobutane under the action of sodium hydride to obtain 3-(4-bromobutyl) quinazoline-4 (3H)-ketone; then, phenylacetic acid sequentially reacts with methyl alcohol, hydrazine hydrate, potassium hydroxide, carbon disulfide and 3-(4-bromobutyl) quinazoline-4 (3H)-ketone, and the quinazolinone derivative containing the oxadiazole unit is obtained. The quinazolinone derivative containing the oxadiazole unit is a novel compound, has an inhibiting effect on fusarium graminearum, rhizoctonia solani and botrytis cinerea, and can be used for preventing and treating plant diseases caused by fungi.

The present application relates to the technical fields of reaction furnace, in particular to a kind of inner heating type continuous semi-coke method carbon disulfide reaction furnace without harmful gas emission, including shell, the inner chamber of the shell is equipped with reaction kettle, the outer surface wall of the reaction kettle is connected with sulphur pipe that penetrates the lateral wall of shell, the bottom of the reaction kettle is connected with discharge pipe, the discharge pipe is directly below being provided with discharge bin, the top side of the discharge bin is connected with the discharge pipe between anti-leakage outer frame, the side of the discharge bin is equipped with driving motor, the one end of the driving motor is equipped with threaded transmission rod that penetrates the lateral wall of discharge bin inner chamber;The present application utilizes the waste heat of exhaust gas, heats neutralizing liquid, so that atomization effect is better, improves work efficiency, reduces the production cost of user, simultaneously can also adjust the volume of first discharge bin and second discharge bin, further adjusts the adding amount according to different granularity semi-coke, and makes the inactivated activated carbon plate revive, improves the versatility and durability of device.

The invention discloses a composite organic solvent for removing organic sulfur in coke oven gas, which relates to the technical field of desulfurization and comprises an organic sulfur selective absorbent, an active substance and water, the organic sulfur selective absorbent is configured to selectively absorb organic sulfur; the active substance is configured to be capable of accelerating the absorption speed of the organic sulfur selective absorbent on organic sulfur; wherein the weight percentage of the organic sulfur selective absorbent is greater than or equal to 76wt% and less than or equal to 89wt%, and the weight percentage of the active substance is greater than or equal to 1.5 wt% and less than or equal to 2wt%. The invention also discloses an application of the composite organic solvent for removing the organic sulfur in an organic sulfur substance containing CS2. The composite solvent provided by the invention can effectively remove organic sulfur, especially carbon disulfide with higher content, in coke oven gas, the total organic sulfur removal rate can be up to 80% or above, meanwhile, the composite solvent has good selective absorption on inorganic sulfur (hydrogen sulfide), and the composite solvent can be recycled, has no secondary pollutant emission and is high in economic benefit.

This invention discloses a bifunctional photocatalyst that modulates the hydrophobic interface of elemental sulfur (S) using aminated g-C3N4, its preparation method, and its application. The preparation method includes the following steps: (1) Preparation of aminated g-C3N4: Melamine is calcined and then ground to obtain g-C3N4; g-C3N4 and urea are dispersed in ethylene glycol, followed by a high-temperature reaction, and finally centrifuged, washed, and dried to obtain aminated g-C3N4; (2) Preparation of S / aminated g-C3N4: Aminated g-C3N4 is dispersed in ethanol to obtain dispersion A; elemental sulfur is dissolved in carbon disulfide to obtain solution B; solution B is then added to dispersion A, and the mixture is stirred at room temperature until the solvent is completely evaporated to obtain the bifunctional photocatalyst that modulates the hydrophobic interface of elemental sulfur (S) using aminated g-C3N4. The bifunctional photocatalyst of this invention has excellent stability and reproducibility. After five consecutive cycles, the catalytic activity did not show a significant decrease, demonstrating good cycle durability.

This invention relates to a continuous flow method for preparing taurine, comprising the following steps: S1, using an alkaline solution of ethanolamine and a carbon disulfide solution as raw materials, simultaneously introducing them into a pressurized first continuous flow reactor to react and obtain a first reaction solution; S2, cooling, filtering, washing, and extracting the first reaction solution to obtain thiazolium-2-thione; S3, dissolving thiazolium-2-thione in an organic acid to obtain a thiazolium-2-thione solution; using the thiazolium-2-thione solution and hydrogen peroxide solution as raw materials, simultaneously introducing them into a second continuous flow reactor to react and obtain a second reaction solution, which is then post-treated to obtain taurine. This invention provides an ideal synthetic route, and through continuous flow reaction, the reaction time is short, resulting in high yield and purity of taurine, effectively reducing costs; the process is simple to operate, safe, and efficient, facilitating large-scale industrial production.

To provide a method for effectively utilizing carbon contained in a battery material.SOLUTION: The method for producing a recycled material includes the following (a) and (b). (a) preparing a battery material; (b) Carbon contained in the battery material is reacted with sulfur to produce carbon disulfide.SELECTED DRAWING: Figure 1

The application discloses a preparation method and application of xanthate or composite xanthate, and belongs to the technical field of xanthate flotation reagent preparation. The preparation method comprises the following steps: firstly, carbon disulfide is added into a self-made kneader with a jacket, stirring is started, then a certain proportion of complex alcohol is added, salt water is opened for cooling, and stirring is continuously performed; nitrogen protection is started, and a weighed amount of caustic soda is added into the kneader in step one in batches for reaction preparation. The raw material source of the application is wide, the process operation is simple, the cost is controllable, the prepared composite xanthate has strong collecting capacity and selectivity, and good flotation indexes are obtained in the flotation test.

The invention relates to the technical field of ceramic materials, in particular to calcium lanthanum sulfide transparent ceramic powder and a preparation method and application thereof.The preparation method comprises the following steps that CaS powder and La2S3 powder are placed in a sealed quartz container, the raw materials are mixed to be uniform in an ultrasonic rotation mode, high-temperature swing sintering is conducted in a vacuum state, then slow cooling is conducted to the room temperature, and the calcium lanthanum sulfide transparent ceramic powder is obtained. And grinding to obtain the CaLa2S4 powder. According to the preparation method of the CaLa2S4 powder, the problem of sulfur loss can be avoided in a limited mode, toxic and dangerous gas of hydrogen sulfide or carbon disulfide is not used, the preparation method is safe, efficient, easy to operate, low in raw material cost and suitable for industrial batch production, and further development of the infrared transparent ceramic application technology is expected to be promoted.

The invention provides a process for preparing hydrogen by a catalytic conversion of sour natural gas, comprising feeding sour natural gas and one or more H2S recycled streams, optionally mixed with fresh C02, to a reformer reactor packed with a catalyst activated in-situ by sul fidation. An apparatus for carrying out the process, to convert sour natural gas to sweet natural gas, hydrogen and carbon disul fide, and catalysts that can be used in the process, are also disclosed.

The invention discloses a non-phosphorus oil-soluble organic antimony additive and a preparation method and application thereof. The preparation method comprises the following steps: mixing an antimony source, a solvent and organic amine, uniformly stirring, dropwise adding carbon disulfide for reaction, heating to 40-150 DEG C, keeping the temperature for reflux reaction, and after the reaction is finished, performing post-treatment to obtain non-phosphorus oil-soluble organic antimony. The synergistic effect of the organic antimony and the sulfur element endows the additive with excellent extreme pressure anti-wear performance, abrasion of a metal friction pair can be effectively reduced, the service life of equipment is prolonged, and meanwhile friction energy consumption is reduced.

The utility model discloses a carbon disulfide sealed storage device which comprises a sealed storage tank and is characterized in that a cooling coil is wound outside the lower part of the sealed storage tank, and a carbon disulfide liquid inlet pipeline, a nitrogen inlet pipeline, a water seal water inlet pipeline, a non-condensable gas exhaust pipeline and a condensate recovery pipe are arranged at the top end of the sealed storage tank; a non-condensable gas exhaust pipeline is connected with a gas inlet pipe of a condenser, a condensate outlet pipeline of the condenser is connected with a condensate recovery pipe, a carbon disulfide outlet pipeline is arranged at the bottom end of the sealed storage tank, and a water seal pipeline is arranged at the top of the side face of the sealed storage tank and connected with a carbon disulfide water seal pool. The carbon disulfide water seal tank is connected with an inlet pipeline of the water seal pump through a water outlet pipeline; and a branch pipe is branched from an outlet pipeline of the water seal pump and is connected with a water seal water inlet pipeline. By means of the sealing device, sealing of carbon disulfide can be guaranteed, air is isolated, the risk of combustion explosion is reduced, and the situation that the carbon disulfide volatilizes into the air and harms the bodies of workers is avoided.

The invention relates to the technical field of electroplating, in particular to dithiocarbonate sulfonate, a preparation method thereof and a copper plating solution. The preparation method of the dithiocarbonate sulfonate comprises the following steps: preparing an alkaline alcohol solution, wherein the alkaline alcohol solution comprises an alcohol compound; adding carbon disulfide into the alkaline alcohol solution, carrying out nucleophilic addition reaction on a certain content of the alcohol compound and the carbon disulfide to generate dithiocarbonate, and dissolving the dithiocarbonate into the residual content of the alcohol compound to obtain a reaction solution; and adding a sultone compound into the reaction solution, carrying out nucleophilic substitution reaction on the dithiocarbonate and the sultone compound, and generating and separating out the dithiocarbonate sulfonate. The synthesis route of the dithiocarbonate sulfonate is enriched, and the synthesized compound can meet the performance requirements of copper plating brighteners.

The invention belongs to the technical field of mineral flotation, and discloses a flotation collecting agent for non-ferrous metal sulfide ore and a preparation method and application thereof.O, O dialkyl dithiophosphate serves as an initial raw material of the collecting agent, and the target product O, O dialkyl dithiophosphate, halogenated carboxylic ester, hydrazine hydrate, potassium hydroxide and carbon disulfide are sequentially subjected to three-step reaction in absolute ethyl alcohol to prepare O, O dialkyl dithiophosphate; the molecular structure of the N, O-dialkyl phosphorodithioic acid hydrazide-N '-potassium dithioformate simultaneously contains three active groups, namely a phosphorodithioate group, a hydrazide group and dithioformate. By optimizing the material ratio, temperature and time of each step of reaction, efficient connection and stable transition of the process are realized, and the method has the advantages of mild reaction conditions, simplicity and convenience in operation, few side reactions, high yield, stable product and the like. And the prepared collecting agent shows excellent collecting performance and good selectivity on non-ferrous metal sulfide ores such as chalcopyrite, and is suitable for popularization and application in a sulfide ore flotation process.

The invention discloses a method for rapidly detecting carbon disulfide in a paraffin remover and inhibitor. The method comprises the following steps: 1, preparing a potassium hydroxide ethanol solution; 2, putting the paraffin remover or paraffin inhibitor to be detected into the potassium hydroxide ethanol solution, and uniformly stirring to obtain a detection intermediate solution; 3, acidifying hydrogen peroxide with colorless dilute acid to obtain an acidic hydrogen peroxide solution; 4, placing the dried starch potassium iodide test paper in an acidic hydrogen peroxide solution, waiting for 30 seconds when the starch potassium iodide test paper turns blue and the color does not change any more, and taking out the blue starch potassium iodide test paper; and 5, putting blue starch potassium iodide test paper into the detection intermediate solution in the step 2, and judging whether the to-be-detected paraffin remover or paraffin inhibitor contains CS2 or not according to whether the blue starch potassium iodide test paper fades or not. According to the detection method disclosed by the invention, whether the paraffin remover or the paraffin inhibitor contains CS2 or not is qualitatively judged through color difference of color development reaction, and the method has the advantages of simplicity, high detection efficiency, wide application range and the like.

The application provides a gold-bearing pyrite coarse particle flotation collector and a preparation method and application thereof. The gold-bearing pyrite coarse particle flotation collector has a general structure as shown in the specification, wherein R1 and R2 are independently selected from hydrogen, C1-C12 substituted or non-substituted alkyl, C1-C12 substituted or non-substituted saturated alkyl, C1-C12 substituted or non-substituted unsaturated hydrocarbon, and C1-C12 substituted or non-substituted cycloalkyl. The preparation method of the gold-bearing pyrite coarse particle flotation collector comprises the following steps: mixing raw materials including water, alkylamine, carbon disulfide, alkali, an oxidizing agent and EDTA, and reacting to obtain the gold-bearing pyrite coarse particle flotation collector. The gold-bearing pyrite coarse particle flotation collector is applied to gold-bearing pyrite flotation and tailing discarding. The gold-bearing pyrite coarse particle flotation collector provided by the application has multiple solid-philic groups, can make the mineral surface sufficiently hydrophobic, and can make coarse particle minerals float, so that the coarse particle mineral flotation and tailing discarding are realized.

The invention relates to a method for preparing high-purity lithium sulfide from a by-product hydrogen sulfide in production of carbon disulfide, belongs to the technical field of preparation of solid-state battery electrolyte materials, and solves the technical problems of high energy consumption, low purity, failure in high-value utilization of hydrogen sulfide and the like in existing lithium sulfide preparation. According to the solution, the method for preparing the high-purity lithium sulfide from the byproduct hydrogen sulfide during production of the carbon disulfide comprises the following steps: 1) preparing the hydrogen sulfide: preparing the carbon disulfide and the byproduct hydrogen sulfide gas from methane and sulfur; (2) preparing dimethyl sulfoxide; 3) dissolving a lithium source; 4) preparation of lithium sulfide through vulcanization reaction: placing the lithium compound dissolved solution in a reaction kettle, introducing hydrogen sulfide gas, forming a lithium hydrosulfide intermediate in an oxygen-free and water-free environment, and converting the lithium hydrosulfide intermediate into lithium sulfide; compared with the prior art, the method has the advantages that high-valued application of the hydrogen sulfide gas is realized, the purity of lithium sulfide is high, the energy consumption is low, and the green chemistry concept is met.

The utility model discloses a centralized volatilization mechanism for carbon disulfide collection, which comprises an alkali washing pool, a collection box is arranged at the top of the alkali washing pool, a separation plate is arranged between the alkali washing pool and the collection box, and the separation plate is movably connected with the collection box through a transmission mechanism; an adsorption layer is arranged above the isolation plate and divides the collection box into an upper volatilization cavity and a lower concentration cavity, heating plates are symmetrically installed on the inner wall of the concentration cavity, and an air outlet is formed in the side wall of the volatilization cavity and communicates with the condensation mechanism. The transmission mechanism is arranged to adjust the isolation plate, so that the isolation plate can be opened at a certain time interval, carbon disulfide volatilized in the alkali washing pool is subjected to centralized treatment, carbon disulfide is subjected to adsorption treatment through the adsorption layer, and the adsorption layer is heated, so that carbon disulfide gas is volatilized; and condensing to obtain liquid carbon disulfide, thereby realizing centralized treatment of volatile carbon disulfide collection.

This invention discloses a system and method for plasma reduction of sulfide ores to produce metals and carbon disulfide in the fields of non-ferrous metal metallurgy and high-value utilization of sulfur resources. The system includes a raw material preparation and conveying unit, a plasma reaction unit, and a condensation and recovery unit. The method involves mixing sulfide ore powder and carbon powder, which are then fed into a plasma gun by a carrier gas. A rapid reduction reaction occurs under ultra-high plasma temperature, generating molten metal and carbon disulfide gas in one step. The molten metal is collected at the bottom of the furnace and released. The high-temperature flue gas is rapidly cooled, dusted, and deeply condensed before being recovered as a high-purity liquid product. This invention achieves a streamlined process for sulfide ore smelting, recovers sulfur resources in a high-value form, avoids sulfur dioxide pollution, and has the outstanding advantages of high efficiency, low carbon footprint, and good economic benefits.